nkeynes@359 | 1 | /**
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nkeynes@561 | 2 | * $Id$
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nkeynes@359 | 3 | *
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nkeynes@359 | 4 | * mem is responsible for creating and maintaining the overall system memory
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nkeynes@359 | 5 | * map, as visible from the SH4 processor. (Note the ARM has a different map)
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nkeynes@359 | 6 | *
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nkeynes@359 | 7 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@359 | 8 | *
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nkeynes@359 | 9 | * This program is free software; you can redistribute it and/or modify
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nkeynes@359 | 10 | * it under the terms of the GNU General Public License as published by
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nkeynes@359 | 11 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@359 | 12 | * (at your option) any later version.
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nkeynes@359 | 13 | *
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nkeynes@359 | 14 | * This program is distributed in the hope that it will be useful,
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nkeynes@359 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@359 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@359 | 17 | * GNU General Public License for more details.
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nkeynes@359 | 18 | */
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nkeynes@359 | 19 |
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nkeynes@359 | 20 | #ifndef gendec_H
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nkeynes@359 | 21 | #define gendec_H
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nkeynes@359 | 22 |
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nkeynes@359 | 23 | #include <stdint.h>
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nkeynes@359 | 24 |
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nkeynes@359 | 25 | #ifdef __cplusplus
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nkeynes@359 | 26 | extern "C" {
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nkeynes@359 | 27 | #endif
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nkeynes@359 | 28 |
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nkeynes@359 | 29 | #define MAX_OPERAND_NAME 8
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nkeynes@359 | 30 | #define MAX_OPERANDS 4
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nkeynes@359 | 31 | #define MAX_OPERATION_FORMAT 64
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nkeynes@359 | 32 | #define MAX_RULES 512
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nkeynes@359 | 33 |
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nkeynes@359 | 34 | #define USE_NONE 0
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nkeynes@359 | 35 | #define USE_READ 1
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nkeynes@359 | 36 | #define USE_WRITE 2
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nkeynes@359 | 37 | #define USE_READWRITE 3
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nkeynes@359 | 38 |
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nkeynes@359 | 39 | struct operand {
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nkeynes@359 | 40 | int bit_count;
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nkeynes@359 | 41 | int bit_shift;
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nkeynes@359 | 42 | int left_shift;
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nkeynes@359 | 43 | int is_signed;
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nkeynes@359 | 44 | int use_mode;
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nkeynes@359 | 45 | char name[MAX_OPERAND_NAME+1];
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nkeynes@359 | 46 | };
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nkeynes@359 | 47 |
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nkeynes@359 | 48 | struct rule {
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nkeynes@359 | 49 | uint32_t bits;
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nkeynes@359 | 50 | uint32_t mask;
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nkeynes@359 | 51 | int bit_count;
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nkeynes@359 | 52 | int operand_count;
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nkeynes@359 | 53 | int flags_use_mode;
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nkeynes@359 | 54 | struct operand operands[MAX_OPERANDS];
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nkeynes@359 | 55 | char format[MAX_OPERATION_FORMAT+1];
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nkeynes@359 | 56 | };
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nkeynes@359 | 57 |
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nkeynes@359 | 58 | struct ruleset {
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nkeynes@359 | 59 | uint32_t rule_count;
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nkeynes@359 | 60 | struct rule *rules[MAX_RULES];
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nkeynes@359 | 61 | };
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nkeynes@359 | 62 |
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nkeynes@359 | 63 | struct ruleset *parse_ruleset_file( FILE *f );
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nkeynes@420 | 64 | void dump_ruleset( struct ruleset *rules, FILE *f );
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nkeynes@420 | 65 | void dump_rulesubset( struct ruleset *rules, int ruleidx[], int rule_count, FILE *f );
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nkeynes@359 | 66 |
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nkeynes@359 | 67 | struct action {
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nkeynes@359 | 68 | char operand_names[MAX_OPERANDS][MAX_OPERAND_NAME+1];
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nkeynes@359 | 69 | char *body;
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nkeynes@359 | 70 | };
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nkeynes@359 | 71 |
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nkeynes@359 | 72 | struct actionset {
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nkeynes@359 | 73 | char *pretext;
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nkeynes@359 | 74 | char *posttext;
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nkeynes@359 | 75 | char *actions[MAX_RULES];
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nkeynes@359 | 76 | };
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nkeynes@359 | 77 |
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nkeynes@359 | 78 | struct actionset *parse_action_file( struct ruleset *rules, FILE *f );
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nkeynes@359 | 79 |
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nkeynes@359 | 80 | int generate_decoder( struct ruleset *rules, struct actionset *actions, FILE *f );
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nkeynes@359 | 81 |
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nkeynes@359 | 82 | #ifdef __cplusplus
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nkeynes@359 | 83 | }
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nkeynes@359 | 84 | #endif
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nkeynes@359 | 85 | #endif
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